def _new_metadata(self, metadata_type):
"""Return Metadata Object for the metadata_type"""
metadata = Metadata(metadata_type)
metadata.checksum_type = self.checksum_type
metadata.compression_type = DEFAULT_COMPRESSION_TYPE
# Set output directory
metadata.out_dir = self.new_repodata_path
# Properties related to the first (old) repository
old_rec = self.old_records.get(metadata_type)
metadata.old_rec = old_rec
if old_rec:
# Build old filename
metadata.old_fn = os.path.join(self.old_repo_path,
old_rec.location_href)
if os.path.isfile(metadata.old_fn):
metadata.old_fn_exists = True
else:
msg = "File {0} doesn't exist in the old repository" \
" (but it should - delta may rely on " \
"it)!".format(metadata.old_fn)
self._warning(msg)
if not self.ignore_missing:
raise DeltaRepoError(msg + " Use --ignore-missing option "
"to ignore this error")
# Properties related to the second (delta) repository
delta_rec = self.delta_records.get(metadata_type)
metadata.delta_rec = delta_rec
if delta_rec:
metadata.delta_fn = os.path.join(self.delta_repo_path,
delta_rec.location_href)
if os.path.isfile(metadata.delta_fn):
metadata.delta_fn_exists = True
# Determine compression type
detected_compression_type = cr.detect_compression(
metadata.delta_fn)
if (detected_compression_type != cr.UNKNOWN_COMPRESSION):
metadata.compression_type = detected_compression_type
else:
self._warning("Cannot detect compression type for "
"{0}".format(metadata.delta_fn))
else:
msg = ("The file {0} doesn't exist in the delta"
"repository!".format(metadata.new_fn))
self._warning(msg)
if not self.ignore_missing:
raise DeltaRepoError(msg + " Use --ignore-missing option "
"to ignore this error")
metadata.checksum_type = cr.checksum_type(delta_rec.checksum_type)
return metadata
def test_detect_compression(self):
# no compression
path = os.path.join(COMPRESSED_FILES_PATH, "01_plain.txt")
comtype = cr.detect_compression(path)
self.assertEqual(comtype, cr.NO_COMPRESSION)
# gz compression
path = os.path.join(COMPRESSED_FILES_PATH, "01_plain.txt.gz")
comtype = cr.detect_compression(path)
self.assertEqual(comtype, cr.GZ)
# bz2 compression
path = os.path.join(COMPRESSED_FILES_PATH, "01_plain.txt.bz2")
comtype = cr.detect_compression(path)
self.assertEqual(comtype, cr.BZ2)
# xz compression
path = os.path.join(COMPRESSED_FILES_PATH, "01_plain.txt.xz")
comtype = cr.detect_compression(path)
self.assertEqual(comtype, cr.XZ)
# zck compression
path = os.path.join(COMPRESSED_FILES_PATH, "01_plain.txt.zck")
comtype = cr.detect_compression(path)
self.assertEqual(comtype, cr.ZCK)
# Bad suffix - no compression
path = os.path.join(COMPRESSED_FILES_PATH, "01_plain.foo0")
comtype = cr.detect_compression(path)
self.assertEqual(comtype, cr.NO_COMPRESSION)
# Bad suffix - gz compression
path = os.path.join(COMPRESSED_FILES_PATH, "01_plain.foo1")
comtype = cr.detect_compression(path)
self.assertEqual(comtype, cr.GZ)
# Bad suffix - bz2 compression
path = os.path.join(COMPRESSED_FILES_PATH, "01_plain.foo2")
comtype = cr.detect_compression(path)
self.assertEqual(comtype, cr.BZ2)
# Bad suffix - xz compression
path = os.path.join(COMPRESSED_FILES_PATH, "01_plain.foo3")
comtype = cr.detect_compression(path)
self.assertEqual(comtype, cr.XZ)
def test_detect_compression(self):
# no compression
path = os.path.join(COMPRESSED_FILES_PATH, "01_plain.txt")
comtype = cr.detect_compression(path)
self.assertEqual(comtype, cr.NO_COMPRESSION)
# gz compression
path = os.path.join(COMPRESSED_FILES_PATH, "01_plain.txt.gz")
comtype = cr.detect_compression(path)
self.assertEqual(comtype, cr.GZ)
# bz2 compression
path = os.path.join(COMPRESSED_FILES_PATH, "01_plain.txt.bz2")
comtype = cr.detect_compression(path)
self.assertEqual(comtype, cr.BZ2)
# xz compression
path = os.path.join(COMPRESSED_FILES_PATH, "01_plain.txt.xz")
comtype = cr.detect_compression(path)
self.assertEqual(comtype, cr.XZ)
# zck compression
path = os.path.join(COMPRESSED_FILES_PATH, "01_plain.txt.zck")
comtype = cr.detect_compression(path)
self.assertEqual(comtype, cr.ZCK)
# Bad suffix - no compression
path = os.path.join(COMPRESSED_FILES_PATH, "01_plain.foo0")
comtype = cr.detect_compression(path)
self.assertEqual(comtype, cr.NO_COMPRESSION)
# Bad suffix - gz compression
path = os.path.join(COMPRESSED_FILES_PATH, "01_plain.foo1")
comtype = cr.detect_compression(path)
self.assertEqual(comtype, cr.GZ)
# Bad suffix - bz2 compression
path = os.path.join(COMPRESSED_FILES_PATH, "01_plain.foo2")
comtype = cr.detect_compression(path)
self.assertEqual(comtype, cr.BZ2)
# Bad suffix - xz compression
path = os.path.join(COMPRESSED_FILES_PATH, "01_plain.foo3")
comtype = cr.detect_compression(path)
self.assertEqual(comtype, cr.XZ)
def _new_metadata(self, metadata_type):
"""Return Metadata Object for the metadata_type"""
metadata = Metadata(metadata_type)
metadata.checksum_type = self.checksum_type
metadata.compression_type = DEFAULT_COMPRESSION_TYPE
# Set output directory
metadata.out_dir = self.new_repodata_path
# Properties related to the first (old) repository
old_rec = self.old_records.get(metadata_type)
metadata.old_rec = old_rec
if old_rec:
# Build old filename
metadata.old_fn = os.path.join(self.old_repo_path, old_rec.location_href)
if os.path.isfile(metadata.old_fn):
metadata.old_fn_exists = True
else:
msg = (
"File {0} doesn't exist in the old repository"
" (but it should - delta may rely on "
"it)!".format(metadata.old_fn)
)
self._warning(msg)
if not self.ignore_missing:
raise DeltaRepoError(msg + " Use --ignore-missing option " "to ignore this error")
# Properties related to the second (delta) repository
delta_rec = self.delta_records.get(metadata_type)
metadata.delta_rec = delta_rec
if delta_rec:
metadata.delta_fn = os.path.join(self.delta_repo_path, delta_rec.location_href)
if os.path.isfile(metadata.delta_fn):
metadata.delta_fn_exists = True
# Determine compression type
detected_compression_type = cr.detect_compression(metadata.delta_fn)
if detected_compression_type != cr.UNKNOWN_COMPRESSION:
metadata.compression_type = detected_compression_type
else:
self._warning("Cannot detect compression type for " "{0}".format(metadata.delta_fn))
else:
msg = "The file {0} doesn't exist in the delta" "repository!".format(metadata.new_fn)
self._warning(msg)
if not self.ignore_missing:
raise DeltaRepoError(msg + " Use --ignore-missing option " "to ignore this error")
metadata.checksum_type = cr.checksum_type(delta_rec.checksum_type)
return metadata